Sentences with phrase «changes in sea ice even»

Not exact matches

«The loss of sea ice in the Arctic and changes to heat storage will lead to changes in weather patterns that could bring extreme heat and cold events to the continental United States similar to those seen in recent years, and possibly even more intense.»

In addition, GOCE data could be used to help validate satellite altimetry measurements for an even clearer understanding of ice - sheet and sea - level change.

As global temperatures continue to increase, the hastening rise of those seas as glaciers and ice sheets melt threatens the very existence of the small island nation, Kiribati, whose corals offered up these vital clues from the warming past — and of an even hotter future, shortly after the next change in the winds.

Even in the absence of huge amounts of carbon dioxide as a forcing mechanism, he said, there still appear to be trigger points that, once passed, can produce rapid warming through feedbacks such as changes in sea ice and the reflectivity of the Earth's surface.

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

My take is that the tug of war over what's causing today's telegenic heat waves, floods, tempests — and even Arctic sea - ice retreats — distracts from the high confidence scientists have in the long - term (but less sexy) picture: that more CO2 will lead to centuries of climate and coastal changes with big consequences for a growing human population (for better and worse in the short run, and likely mostly for the worse in the long run).

A team of scientists is pioneering new strategies for ensuring that polar bears can persist even as summer sea ice — a vital feeding platform — retreats under the climate change that is already in the pipeline no matter how aggressively societies tackle the greenhouse challenge.

From the still - violent Amazon frontier to the thawing North Pole sea ice there are signs that science, education, transparency and global communication networks can foster progress even in the face of rapid change.

As for irreversible, if an ice sheet starts flowing, or if an albedo change from sea ice gets locked in, I could imagine a climate change being essentially irreversible even if CO2 was brought back down, but it's just speculation, nothing more.

This change speed is dizzying us in the Arctic, even snow buntings come back very early this spring, and polar bears are seen on the thin enough sea ice for seals at the North Pole.

All climate models tell us that it is the Arctic sea ice cover that declines first, and that Antarctic ice extent falls only later, and may even (as observed) temporarily increase in response to changing patterns of atmospheric circulation.

«A number of recent climate change reports even failed to mention polar bears in their discussion of Arctic sea ice decline... Crockford, «Even Al Gore seems to have forgotten to include the plight of polar bears in his newest climate change moeven failed to mention polar bears in their discussion of Arctic sea ice decline... Crockford, «Even Al Gore seems to have forgotten to include the plight of polar bears in his newest climate change moEven Al Gore seems to have forgotten to include the plight of polar bears in his newest climate change movie.

However, even a smaller figure (I had calculated about 0.17 W / m ^ 2 based on your inflated figure for total planetary albedo, but you can check it out) is still significant when compared with the total flux imbalance, which I think is a more informative comparison than an arbitrarily selected change in cloud cover, because it compares the sea ice reduction with the effects of all climate variations that have been operating in recent years..

Oregon State Climatologist George Taylor wrote that «Arctic sea ice has undergone significant changes in the last 1,000 years, even before the mid-20th century «greenhouse enhancement.»

Stéphanie Jenouvrier, a biologist at the Woods Hole Oceanographic Institution in the US, and colleagues from France and the Netherlands report in Nature Climate Change that changes in the extent and thickness of sea ice will create serious problems for a flightless, streamlined, survival machine that can live and even breed at minus 40 °C, trek across 120 kilometres of ice, and dive to depths of more than 500 metres.

The majority of the winter warming is associated with changes in sea ice cover even though the sea ice declines at this time of the year are relatively small.

The retreat of glaciers and shrinking of the Greenland ice sheet in the Arctic, for example, is predicted to cause significant sea - level rise, changes in the salinity of our oceans, and altered feedback loops that will make the Arctic warm up even faster.

Whenever I write about Arctic ice, a herd of climate change deniers converge in the comments and on social media, barking about how Antarctic sea ice is unchanged or even on the rise.

Even now NSIDC, Tamino, Nick Stokes, Steve Mosher, are oblivious to that change despite 10 years of no statistical differences in Arctic sea ice.

The IPCC 2007 Fourth Assessment of climate change science concluded that large reductions in the emissions of greenhouse gases, principally CO2, are needed soon to slow the increase of atmospheric concentrations, and avoid reaching unacceptable levels.However, climate change is happening even faster than previously estimated; global CO2 emissions since 2000 have been higher than even the highest predictions, Arctic sea ice has been melting at rates much faster than predicted, and the rise in the sea level has become more rapid.

Instead, natural variations in the climate system and other external forcing factors (such as volcanic eruptions) will likely cause the rate of Arctic sea ice change to vary considerably from decade to decade, and perhaps even temporarily switch from negative (sea ice loss) to positive (sea ice growth).

One question posed by climate change is «will melting land ice and sea ice in the Arctic slow down or even shut down a vital part of the ocean circulation in the North Atlantic?»

Just for one example, if it turns out that, between melt of sea ice and Greenland ice, the North Atlantic Current slows or stops, we would expect to see fairly dramatically colder weather in Europe for a while, even thought this condition could be directly linked to results produced by GW (though in the long term, the warming would, presumably eventually overtake the cooling from change in ocean currents).

They conclude with another warning: ``... if major shifts in sea ice cover and ocean circulation tip even large ice shelf cavities from cold to warm (35), there could be major changes in ice shelf and thus ice sheet mass balance.»

And in 2007, even after acknowledging that the polar bear deserves federal protection due to global warming, the administration put a gag order on government scientists traveling abroad to prevent discussion of climate change, Arctic sea ice and polar bears.

However, recent observations of the rate and severity of physical and ecological responses to escalating radiative forcing — melting glaciers and ice sheets resulting in sea level rise and major changes in weather patterns, prolonged droughts, more frequent hurricanes and storms, and so on — are surprising even top climate experts, and raising awareness that, as a nation, we are dangerously unprepared for the inevitable consequences.